Mobil Oil Corporation

Larry L Cox

E Thomas Strom

Charles S Yeh

Tommy J Yates

A method for consolidating a subterranean formation to control the production of particulates therefrom. A specific consolidating solution comprised of an allyl monomer and an initiator is injected into the formation where it is allowed to set at an elevated temperature to harden and form a permeable, consolidated mass. The allyl monomer is an allyl ester selected from the group of diallyl orthophthalate, diallyl isophthalate, diallyl terephthalate, diallyl benzenephosphonate, diethylene glycol bis (allyl carbonate) and other known allyl monomers and the initiator is preferably a peroxy compound (e.g. benzoyl peroxide, diisopropyl peroxydicarbonate, etc.) or an azo compound (e.g. 4,4'-azobis(4-cyanovaleric acid). A diluent such as an alcohol (e.g. isopropyl alcohol or isobutyl alcohol) or a mutual solvent (e.g. ethylene glycol monobutyl ether, diacetin, triacetin, acetone, etc.) and a coupling agent (e.g. an organofunctional silane) may be added if needed.

Method for consolidating a subterranean formation

A method for plugging a zone of a subterranean formation to block flow therethrough. A specific plugging solution comprised of an allyl monomer and an initiator is injected into the zone where it is allowed to set at an elevated temperature to harden and form a flow-blocking solid. The allyl monomer is an allyl ester selected from the group of diallyl orthophthalate, diallyl isophthalate, diallyl terephthalate, diallyl benzenephosphonate, diethylene glycol bis(allyl carbonate) and other known allyl monomers and the initiator is preferably a peroxy compound (e.g. benzoyl peroxide, diisopropyl peroxydicarbonate, etc.) or an azo compound (e.g. 4,4'-azobis(4-cyanovaleric acid). A diluent such as an alcohol (e.g. isopropyl alcohol or isobutyl alcohol) or a mutual solvent (e.g. ethylene glycol monobutyl ether, diacetin, triacetin, acetone, etc.) and a coupling agent (e.g. an organofunctional silane) may be added if needed.

Method for treating formations to plug flow

A well tool (e.g. well screen) having a single connector for fluidly connecting the shunt conduits carried by adjacent joints of a well tool to thereby eliminate the need for separate, individual connectors. The single connector is slidably mounted on the central conduit of one of the joints and has a plurality of passages therethrough, each of which is adapted to receive a respective shunt conduit on one of the adjacent joints. After the central conduits of two adjacent joints are coupled together, the single connector is moved whereby the upper ends of the respective shunts on one joint enter the lower ends of the respective passages to thereby fluidly connect the respective shunt conduits. The single connector is then secured in a connected position.

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Carrollton, TX, United States of America

Larry L Cox